AUTHOR=Rao Gang , Le Béon Maryline , Lu Renqi , Graveleau Fabien , Wu Jonny , Delcaillau Bernard TITLE=Editorial: Active Fold-and-Thrust Belts: From Present-Day Deformation to Structural Architecture and Modelling JOURNAL=Frontiers in Earth Science VOLUME=9 YEAR=2021 URL=https://www.frontiersin.org/journals/earth-science/articles/10.3389/feart.2021.816157 DOI=10.3389/feart.2021.816157 ISSN=2296-6463